331402425 has 24 divisors (see below), whose sum is σ = 548518464. Its totient is φ = 176554560.

The previous prime is 331402411. The next prime is 331402441. The reversal of 331402425 is 524204133.

It is not a de Polignac number, because 331402425 - 2¹³ = 331394233 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 331402395 and 331402404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89919 + ... + 93531.

It is an arithmetic number, because the mean of its divisors is an integer number (22854936).

Almost surely, 2^331402425 is an apocalyptic number.

It is an amenable number.

331402425 is a deficient number, since it is larger than the sum of its proper divisors (217116039).

331402425 is a wasteful number, since it uses less digits than its factorization.

331402425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4844 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 331402425 is about 18204.4616783908. The cubic root of 331402425 is about 692.0198638033.

Adding to 331402425 its reverse (524204133), we get a palindrome (855606558).

The spelling of 331402425 in words is "three hundred thirty-one million, four hundred two thousand, four hundred twenty-five".